4 and CAT, BV-G, CAT CG132, Caterpillar Stationary Gas Engines (meets), CG170, CG260 – TR 2105, CUMMINS: QSV 81G, CUMMINS: QSV 91G, Guascor: FGLD, INNIO Jenbacher: Series 2, KG-2, KG-3, KG-4, L32/L33, MAK: GCM 34 Category 1, MAN D&T: Medium Speed Engines for Gas Operation, MAN T&B: M3271-2, MTU: Series 4000 L61/L62/L63/L64, MWM gas engines – TR 2105, Perkins: 4000 series, QSK 60G, ROLLS ROYCE CR-G, Rolls Royce: KG-1, Series 4 ( from version C) Fuel Class B and C, Series 6 ( from version F) Fuel Class B and C, Series 6 all versions Fuel Class A and CAT, SFGLD, Tedom (meets), W 175SG, W 20DF, W 220SG, W 32DF, W 34DF, W 50DF, W 50SG, W25SG, W28SG, Wartsila: W 34SG, Waukesha: Cogen and 220 GL (Pipeline Quality Natural Gas), Waukesha: other gas engine types (meets)